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ES8308436A1 - Pictorial information processing technique. - Google Patents

Pictorial information processing technique.

Info

Publication number
ES8308436A1
ES8308436A1 ES512307A ES512307A ES8308436A1 ES 8308436 A1 ES8308436 A1 ES 8308436A1 ES 512307 A ES512307 A ES 512307A ES 512307 A ES512307 A ES 512307A ES 8308436 A1 ES8308436 A1 ES 8308436A1
Authority
ES
Spain
Prior art keywords
display
memory
picture
display device
pictorial information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES512307A
Other languages
Spanish (es)
Other versions
ES512307A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of ES512307A0 publication Critical patent/ES512307A0/en
Publication of ES8308436A1 publication Critical patent/ES8308436A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/08—Telephonic communication systems specially adapted for combination with other electrical systems specially adapted for optional reception of entertainment or informative matter
    • H04M11/085—Telephonic communication systems specially adapted for combination with other electrical systems specially adapted for optional reception of entertainment or informative matter using a television receiver, e.g. viewdata system
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/39—Control of the bit-mapped memory
    • G09G5/393—Arrangements for updating the contents of the bit-mapped memory
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

A technique for processing pictorial information to enable its display on a desired display device independent of the latter's resolution characteristics includes a unique encoding procedure and a corresponding decoding and display procedure. Attributes of each element of a picture or image (such as its color) are specified by a group of N bits. The bits are assembled to form M-bit active portions of a series of bytes. M and N need not to be integrally related. Ones of the words also define the size of the elements with respect to a unit display space (the horizontal and vertical dimensions of each element can be different), the order in which the elements are arranged in the picture (e.g., left to right or vice versa) and the value of N. The bytes are decoded and the picture displayed by locating each pel in the unit screen coordinate space, mapping each location to a corresponding storage location in an array formed by a frame memory, writing the attributes of each pel in one or more of the storage locations, and sequentially reading the contents of the memory and applying the output to the display device. Apparatus for practicing the processing technique inclues a random access memory (10) arranged to receive encoded pictorial information via input/output circuit (10), a read-only memory (9) arranged to store program information defining the various steps of the present invention, and a data processor (1) for effecting the specified operation. During the display processing sequency, information describing the desired picture is entered in video memory (4) for eventual presentation on display device (7) via a digital to video convertor (6).
ES512307A 1981-05-19 1982-05-18 Pictorial information processing technique. Expired ES8308436A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/265,069 US4454593A (en) 1981-05-19 1981-05-19 Pictorial information processing technique

Publications (2)

Publication Number Publication Date
ES512307A0 ES512307A0 (en) 1983-09-01
ES8308436A1 true ES8308436A1 (en) 1983-09-01

Family

ID=23008835

Family Applications (1)

Application Number Title Priority Date Filing Date
ES512307A Expired ES8308436A1 (en) 1981-05-19 1982-05-18 Pictorial information processing technique.

Country Status (7)

Country Link
US (1) US4454593A (en)
EP (2) EP0079380A4 (en)
JP (1) JPS58500775A (en)
CA (1) CA1191636A (en)
ES (1) ES8308436A1 (en)
GB (1) GB2100546A (en)
WO (1) WO1982004146A1 (en)

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Also Published As

Publication number Publication date
ES512307A0 (en) 1983-09-01
CA1191636A (en) 1985-08-06
GB2100546A (en) 1982-12-22
JPS58500775A (en) 1983-05-12
WO1982004146A1 (en) 1982-11-25
EP0079380A4 (en) 1983-09-29
EP0066981A1 (en) 1982-12-15
US4454593A (en) 1984-06-12
EP0079380A1 (en) 1983-05-25

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990405